Well I'm amazed it turned out as well as it did. I screwed up the measurements at the Depot, so had to cut the shelves down a little more when I got home (thank The Baby Jesus for power tools). And I ended up with 12 slots instead of 11. But all in all the end product will get the job done.
Here it is
I should have an easier time of it with the next one, a six slot for 41q tubs